19889273201 has 8 divisors (see below), whose sum is σ = 22732279680. Its totient is φ = 17046687168.

The previous prime is 19889273177. The next prime is 19889273221. The reversal of 19889273201 is 10237298891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19889273201 - 2²² = 19885078897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19889273201.

It is not an unprimeable number, because it can be changed into a prime (19889273221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3785 + ... + 199481.

It is an arithmetic number, because the mean of its divisors is an integer number (2841534960).

Almost surely, 2^19889273201 is an apocalyptic number.

It is an amenable number.

19889273201 is a deficient number, since it is larger than the sum of its proper divisors (2843006479).

19889273201 is a wasteful number, since it uses less digits than its factorization.

19889273201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210223.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 19889273201 in words is "nineteen billion, eight hundred eighty-nine million, two hundred seventy-three thousand, two hundred one".